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Old English brūcan (inherited)
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Old English brōc (inherited)
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Middle English brouken (inherited)
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Middle English brook (inherited)
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Proto-Germanic *brūkaną (inherited(en/sco))
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Proto-West Germanic *brōk (inherited)
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Proto-Indo-European *bʰruHg- (derived)
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English fruit (cognate)
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English river (mention)
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Alemannic German bruuche (cognate)
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Pennsylvania German brauche (cognate)